12．You either have it，or you don't---a sense of direction，that is．But why is it that some people could find their way across the Sahara without a map，while others can lose themselves in the next street？
Scientists say we're all born with a sense of direction，but it is not properly understood how it works．One theory is that people with a sense of direction have simply worked harder at developing it．Research being carried out at Liverpool University supports this idea and suggests that if we don't use it，we lose it．
"Children as young as seven have the ability to find their way around，"says Jim Martland，Research Chief of the project．"However，if they are not allowed out alone or are taken everywhere by car，they never develop the skills．"
Jim Martland also emphasizes that young people should be taught certain skills to improve their sense of direction．He makes the following suggestions：
l If you are using a map，turn it，and it relates to the way you are facing．
l If you leave your bike in a strange place，put it near something like a big stone or a tree．Note landmarks on the route as you go away from your bike．When you return，go back along the same route．
l Simplify the way of finding your direction by using lines such as streets in a town，streams，or walls in the countryside to guide you．Count your steps so that you know how far you have gone and note any landmarks such as tower blocks or hills which can help to find out where you are．
Now you need never get lost again!
33．Scientists believe thatD．
A．some babies are born with a sense of direction
B．people learn a sense of direction as they grow older
C．people never lose their sense of direction
D．Everybody possesses a sense of direction from birth
34．If you leave your bike in a strange place，you shouldD．
A．tie it to a tree so as to prevent it from being stolen
B．draw a map of the route to help remember where it is
C．avoid taking the same route when you come back to it
D．remember something easily recognizable on the route
35．According to the passage，the best way to find your way around is toB．
A．ask policemen for directions
B．use walls，streams，and streets to guide yourself
C．remember your route by looking out for steps and stairs
D．count the number of landmarks that you see．
分析 这篇短文重点讲述了人们与生俱来的方向感的问题，作并就如何提高自己辨别方向的能力提出了几点建议．
解答 DDB
33．D 由第二段第一句Scientists say we're all born with a sense of direction，but it is not properly understood how it works．可以得知，每个人生来就有方向感，故答案为D
34．D 由原文If you leave your bike in a strange place，put it near something like a big stone or a tree．Note landmarks on the route as you go away from your bike．When you return，go back along the same route．可以得出ABC都错了，D正确．与Note landmarks on the route同义．
35．B 由最后一段Simplify the way of finding your direction by using lines such as streets in a town．Streams，or walls in the countryside to guide you．可以得知，找到路的最好办法是利用街道小溪墙壁等作为标志物，故选B．
点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．
